A main character in the "Doonesbury" comic strip will lose a leg while fighting in Iraq, one of two strips published this week that feature soldiers getting injured in the war. In Monday's "Doonesbury," B.D., a football coach-turned-soldier, was injured after being reactivated in the Army at the end of 2002, following a losing football season. Later this week, he will wake up to find his left leg amputated, according to Universal Press Syndicate, the strip's distributor. "Doonesbury" creator Garry Trudeau said he wanted to illustrate the sacrifices American soldiers are making. "It's a task any writer should approach with...